Computer Certifications, Online Certification, Online Certifications

ISACA
As an independent, nonprofit, global association, ISACA engages in the development, adoption and use of globally accepted, industry-leading knowledge and practices for information systems.

https://www.isaca.org/Pages/default.aspx

Microsoft
Microsoft Learning builds innovative learning products that enable you to make the most of your investment in Microsoft technology.

http://www.microsoft.com/learning/en/us/default.aspx

CompTIA
CompTIA is the leading provider of vendor-neutral certifications in the world. We offer 14 certification and certificate exams in PC support, networking, servers, convergence, training, Linux, security, IT sales, green IT and more.

http://certification.comptia.org/home.aspx